Strong metal-support interactions between atomically dispersed Ru and CrO _x for improved durability of chlorobenzene oxidation.

ABSTRACT: In this work, two single-atom catalysts (SACs) with atomically dispersed RuO₂ supported on CrO _x were successfully synthesized with a simple reduction strategy for the efficient catalytic oxidation of chlorobenzene (CB). With characterizations like Cs-corrected STEM, XPS, H₂-TPR, and O₂-TPD, the structure-activity relationship is addressed. The noble metal precursor Ru³⁺ was anchored with different oxygen species and exposed facets based on the physicochemical properties of catalyst supports. Based on the analysis results, the Ru³⁺ precursor could be mainly anchored into the surface lattice oxygen of Cr₂O₃-M over high-index facets (223) and adsorbed oxygen of Cr₂O₃-P over lo

SUBMITTER: Chen X 

PROVIDER: S-EPMC9890632 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature